This is the net Rob has been recommending... The Promar Grande Halibut / Salmon Release Net with the black netting (the gray netting is a cloth type material that is unfriendly to hooks).

http://www.americanmaple.com/relaunchpromar/grandehalibutsalmon.html

I bought one a year ago and from now on it feels like cheating every time I net a fish. I don't have any space for a big net either, but it's such an important tool I even bring it on my kickboat.